the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Mediterranean basin-wide correlations between Saharan dust deposition and ocean chlorophyll concentration
Abstract. The fertilizing potential of atmospheric deposition on ocean production in the Mediterranean is a matter of debate. In this study, eight years (from 2000 to 2007) of weekly chlorophyll concentration data derived from SeaWiFS satellite observations and dust deposition data provided by the BSC-DREAM8b model are investigated in a basin-wide scale in the Mediterranean Sea to describe the geographical distribution and dynamics of both variables and to find potential relationships between them.
In all analyses the largest positive cross correlation values are found with a time lag of 0 8-d periods. The coupling between annual cycles of chlorophyll and dust deposition may on average explain an 11.5% in chlorophyll variation in a large part of the Mediterranean. The Eastern Mediterranean shows the largest annual correlations, while the responsiveness to large events is small. The contrary is true for the Western and Northwestern Mediterranean where, if anything, only large events may add to the chlorophyll variability. The Central Mediterranean shows the highest responsiveness of chlorophyll to mineral dust deposition with annual contributions from seasonal variability as well as stimulations owing to large events.
These results highlight the importance of dust deposition from African and Middle East origin in the potential stimulation of phytoplankton production in the nutrient depleted surface layers of the Mediterranean Sea.
This preprint has been withdrawn.
-
Withdrawal notice
This preprint has been withdrawn.
-
Preprint
(5645 KB)
Interactive discussion
- Printer-friendly version
- Supplement
-
RC C3486: 'Referee report', Anonymous Referee #1, 22 Aug 2012
-
RC C3614: 'Interactive comment on "Mediterranean basin-wide correlations between Saharan dust deposition and ocean chlorophyll concentration" by R. Gallisai et al.', Anonymous Referee #2, 28 Aug 2012
-
AC C4040: 'Reply to Anonymous Referees #1 and #2', Rachele Gallisai, 17 Sep 2012
Interactive discussion
- Printer-friendly version
- Supplement
-
RC C3486: 'Referee report', Anonymous Referee #1, 22 Aug 2012
-
RC C3614: 'Interactive comment on "Mediterranean basin-wide correlations between Saharan dust deposition and ocean chlorophyll concentration" by R. Gallisai et al.', Anonymous Referee #2, 28 Aug 2012
-
AC C4040: 'Reply to Anonymous Referees #1 and #2', Rachele Gallisai, 17 Sep 2012
Viewed
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 936 | 1,015 | 83 | 2,034 | 70 | 50 |
- HTML: 936
- PDF: 1,015
- XML: 83
- Total: 2,034
- BibTeX: 70
- EndNote: 50
Cited
13 citations as recorded by crossref.
- Exploring Possible Influence of Dust Episodes on Surface Marine Chlorophyll Concentrations D. Kotta & D. Kitsiou 10.3390/jmse7020050
- Saharan dust aerosol over the central Mediterranean Sea: PM<sub>10</sub> chemical composition and concentration versus optical columnar measurements M. Marconi et al. 10.5194/acp-14-2039-2014
- Aerosol inputs affect the optical signatures of dissolved organic matter in NW Mediterranean coastal waters E. Sánchez-Pérez et al. 10.3989/scimar.04318.20B
- EARLINET dust observations vs. BSC-DREAM8b modeled profiles: 12-year-long systematic comparison at Potenza, Italy L. Mona et al. 10.5194/acp-14-8781-2014
- The Effect of Dust Transport on the Concentration of Chlorophyll-A in the Surface Layer of the Black Sea A. Varenik & D. Kalinskaya 10.3390/app11104692
- Large Saharan dust storms: Implications for chlorophyll dynamics in the Mediterranean Sea R. Gallisai et al. 10.1002/2016GB005404
- New algorithms for estimating chlorophyll-a in the Spanish waters of the Western Mediterranean Sea from multiplatform imagery F. Gómez Jakobsen et al. 10.1080/01431161.2018.1500048
- Long term characterization of Trichodesmium erythraeum blooms in Gabès Gulf (Tunisia) H. Sabeur et al. 10.1016/j.csr.2016.05.007
- Atmospheric bulk deposition of dissolved nitrogen, phosphorus and silicate in the Gulf of Gabès (South Ionian Basin); implications for marine heterotrophic prokaryotes and ultraphytoplankton Y. Khammeri et al. 10.1016/j.csr.2018.03.003
- Monitoring red tide with satellite imagery and numerical models: A case study in the Arabian Gulf J. Zhao & H. Ghedira 10.1016/j.marpolbul.2013.10.057
- Saharan Dust Deposition May Affect Phytoplankton Growth in the Mediterranean Sea at Ecological Time Scales R. Gallisai et al. 10.1371/journal.pone.0110762
- Saharan dust deposition in the Carpathian Basin and its possible effects on interglacial soil formation G. Varga et al. 10.1016/j.aeolia.2016.05.004
- Bio-Aerosols Negatively Affect Prochlorococcus in Oligotrophic Aerosol-Rich Marine Regions E. Rahav et al. 10.3390/atmos11050540
